Technical Requirements:

• Install PHP 8.2 or higher along with required PHP extensions.
• Install Composer.
• Optionally, install Symfony CLI for helpful tools.

Creating Symfony Applications:

• Use Symfony CLI or Composer to create a new Symfony project.

For Symfony CLI:

symfony new my_project_directory --version="7.0.*" --webapp 

Or for Composer:

composer create-project symfony/skeleton:"7.0.*" my_project_directory 
cd my_project_directory 
composer require webapp 

Setting up an Existing Symfony Project:

• Get the project code (e.g., via Git clone).
• Install dependencies with Composer:

cd my-project/ composer install 

• Customize .env file and perform other project-specific tasks.

Running Symfony Applications:

• For local development, use Symfony's built-in web server:

cd my-project/ symfony server:start 

Access the application in your browser at http://localhost:8000/.

Symfony Docker Integration:

• If you prefer Docker, check Symfony's Docker integration documentation.

Installing Packages (Symfony Flex):

• Use Symfony Flex to simplify package installation:

cd my-project/ composer require <package_name> 

Checking Security Vulnerabilities:

• Use Symfony CLI to check for security vulnerabilities:

symfony check:security 

This command checks for known security vulnerabilities in your project's dependencies.

Symfony LTS Versions:

• Use --version option to specify Symfony version:

symfony new my_project_directory --version="7.0.*" 

Or when using Composer:

composer create-project symfony/skeleton:"7.0.*" my_project_directory 

Symfony Demo Application:

• Symfony provides a Demo Application for learning purposes:

symfony new my_project_directory --demo 

Once you've followed these steps, your Symfony 7.0 project should be set up and ready for development.